Python Backend Engineer Job at Makersite GmbH (Berlin)

Python Backend Software Engineer

Join our Ledger Recover team as a talented Senior Software Engineer and play a k...

Location

France , Paris

Salary:

Not provided

Ledger

Expiration Date

Until further notice

Requirements

Proficiency in Python 3 with experience in frameworks like FastAPI, coupled with a solid understanding of security principles (cryptography, secure system design)
Proficient in secure code development and testing using pytest, with knowledge of infrastructure tools like AWS, Kubernetes, and Helm
Experience with security-focused QA processes, ensuring system resilience
Strong problem-solving skills and a security-first mindset, with excellent communication and collaboration abilities
Full professional proficiency in English
A passion for innovation and secure technology development
Familiarity with microservice architecture concepts

Job Responsibility

Design, develop, and maintain secure backend services using Python and FastAPI for the Ledger Recover product
Implement and enhance testing frameworks with pytest to ensure robustness and security of code
Collaborate with the hardware team to integrate software with HSMs and other security devices
Build and maintain cloud infrastructure using AWS, Kubernetes, and Helm, ensuring high availability and security compliance
Enhance the security posture of the Ledger Recover system, including implementing best practices for cryptographic operations
Support quality assurance processes, identifying vulnerabilities and addressing potential threats

What we offer

Equity: Employees are the foundation of our success, and we award stock options so you can share in that success as we grow
Flexibility: A hybrid work policy
Social: Annual company outing for Ledgerdary Days, plus frequent social events, snacks and drinks
Medical: Comprehensive health insurance policy offering extensive medical, dental and vision care coverage
Well-being: Personal development, coaching & fitness with our dedicated partners
Vacation: Five weeks of paid leave per year, in addition to national holidays and rest & relaxation (RTT) days
High tech: Access to high performance office equipment and gadgets
Transport: Ledger reimburses part of your preferred means of transportation
Discounts: Employee discount on all our products

Fulltime

SDET QA Automation Engineer - Backend Python BDD CI-CD

Lead technical and business testing team members in preparation for and executio...

Location

India , Pune

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

8-12 years Quality Assurance (QA) experience in the Financial Service industry
Experience in Agile, BDD and Dev Ops testing methodologies
Strong experience in API testing using various tools
Proficiency in SQL
Working experience of Mongo DB, API testing
Strong UNIX, Shell, Perl, Python scripting experience
Detailed-oriented, high level of intellectual curiosity and strong sense of ownership
Demonstrated ability to multi-task effectively and work against tight deadlines
Good business acumen and the ability to connect analytics with business decisions
Strong analytical skills with hands on experience driving testing strategy

Job Responsibility

Lead technical and business testing team members in preparation for and execution of test initiatives
Participate in requirements, design reviews with Product, Business Analysts and Development teams
Perform requirements reviews and traceability analyses to assess test coverage
Oversee test execution initiatives, adhering to test schedule and key milestones
Perform test execution and provide clear and concise test progress reporting
Monitor QA activities, test results, defects, root cause analysis and identify areas needing improvement
Recommend and lead continuous improvement initiatives

Fulltime

Senior LLM Backend Engineer

We are looking for a Senior Backend Engineer with a strong focus on Large Langua...

Location

Spain

Salary:

Not provided

Bark

Expiration Date

Until further notice

Requirements

Extensive production experience with Python in backend engineering
Proven experience integrating LLMs into applications via APIs or SDKs
Strong experience building and maintaining APIs for LLM-based features
Strong experience building and maintaining event-driven workflows
Strong experience building and maintaining business logic that consumes AI outputs
Strong experience building and maintaining integrations with 3rd party AI/ML platforms
Solid SQL and NoSQL experience (especially in AI data pipelines)
Production experience with Docker, ideally with Kubernetes or AWS Fargate/ECS/EKS
Experience deploying and maintaining AI services in cloud environments
Strong organisational skills and ability to deliver in a fast-paced, product-focused environment

Job Responsibility

Work with product managers to understand user needs and translate them into AI-powered functionality
Design and build APIs, services, and workflows that integrate LLMs (both proprietary and open-source)
Implement prompt engineering, RAG pipelines, and model fine-tuning where required
Optimise AI inference performance, scalability, and cost-effectiveness
Ensure AI features meet high standards for security, reliability, and maintainability
Collaborate with other engineers to integrate AI features seamlessly into the wider system
Stay on top of emerging LLM technologies and best practices, running experiments and sharing knowledge across the team

What we offer

Fully remote working
Personal annual L&D Budgets with 600€ to spend on your development
Being at the forefront of an industry with new and exciting problems to solve

Fulltime

Backend Engineer

A backend engineer at Hebbia blends expertise in systems, application layer soft...

Location

United States , New York City; San Francisco

Salary:

160000.00 - 300000.00 USD / Year

Hebbia

Expiration Date

Until further notice

Requirements

Bachelor's or Master's degree in Computer Science, Data Science, Statistics, or a related field
5+ years software development experience at a venture-backed startup or top technology firm, with a focus on backend software engineering
Proficiency in building backend and API systems using technologies such as Python, Java, or Go
Extensive experience with cloud platforms (e.g., AWS)
Working experience with one or more of the following: Kafka, ElasticSearch, PostgreSQL, and/or Redis
Ability to analyze complex problems, propose innovative solutions, and effectively communicate technical concepts to both technical and non-technical stakeholders
Proven experience in leading software development projects and collaborating with cross-functional teams
Enthusiasm for continuous learning and professional growth
Embraces rapid prototyping with an emphasis on user feedback
Autonomous and excited about taking ownership over major initiatives

Job Responsibility

Own critical system components
Unlock O(1) universal indexing
Build and iterate on our high-scale document build system
Drive performance optimization
Architect and implement performance-tuning solutions
Mentor and guide
Provide technical leadership, mentorship, and guidance to junior engineers

What we offer

PTO: Unlimited
Insurance: Medical + Dental + Vision + 401K
Eats: Catered lunch daily + doordash dinner credit if you ever need to stay late
Parental leave policy: 3 months non-birthing parent, 4 months for birthing parent
Fertility benefits: $15k lifetime benefit
New hire equity grant: competitive equity package

Fulltime

Staff Backend Engineer

Kalepa is looking for a Staff Backend Engineer to work on its AI Copilot platfor...

Location

Salary:

145000.00 - 185000.00 USD / Year

Kalepa

Expiration Date

Until further notice

Requirements

8+ years of relevant software engineering experience
Excellent development skills including design, debugging and problem solving
Bachelors or master's degree in computer science or a related field
Experience with Python3 or other OO languages (Java, C++, C#, etc.)
Experience with AWS (EC2, Lambda, etc.) and serverless technologies
Experience with relational databases, preference for PostgreSQL
Experience working on distributed systems creating scalable, fault-tolerant infrastructure
Experience building data driven microservices leveraging RESTful API's
Experience with tools such as Docker, Git, GitHub, Flask, NumPy, Pandas

Job Responsibility

Work on advanced systems including NLP, firmographic data, entity resolution
Solve problems at the intersection of large and performant data pipelines, distributed systems, machine learning models, and robust infrastructure
Collaborate with a global team of full-stack, data, ML, and DevOps engineers
Build scalable and reliable backend solutions

What we offer

Competitive salary (based on experience level)
Significant equity options package
20 days of PTO a year
Global team offsites
Healthy living/gym stipend
Mobile phone bill stipend
Continuing education credits

Fulltime

Senior AI Product Engineer, Backend

Our Backend Engineering team builds all of the highly scalable distributed servi...

Location

United States

Salary:

125000.00 - 225000.00 USD / Year

Arize

Expiration Date

Until further notice

Requirements

5+ years of experience working with high-performance backend systems
Strong experience writing Go, Python, TypeScript/Node, Java, or similar server programming languages
Enthusiasm and interest in the AI and LLM ecosystem, with a desire to learn and stay updated on emerging technologies
Previous work building and operating highly complex SaaS platforms/systems
Knowledge of working with public clouds & container orchestration - AWS, GCP, Azure, Kubernetes, etc.

Job Responsibility

Write maintainable, scalable, and performant backend code primarily in Go, Java, and Python, with opportunities to work in TypeScript
Build high-volume and highly available analytics systems
Design and build APIs specific to our customers’ Machine Learning and LLM workflows
Prototype, optimize, and maintain scalable backend services that power the Arize core platform
Extend, and contribute back to, open source OLAP databases and distributed message queue frameworks
Develop and integrate collection tools for robust monitoring of ML and LLM pipelines
Research and implement cutting-edge visualization & dimensionality reduction algorithms in a distributed environment
Collaborate with our product, design, and directly with customer engineering teams to enhance and expand our product offerings
Contribute to the build our own in-house AI Agents

What we offer

competitive equity package
comprehensive benefits package, including medical, dental, vision
a 401(k) plan
unlimited paid time off
a generous parental leave plan
additional support for mental health and wellness
WFH monthly stipend to pay for co-working spaces

Fulltime

Staff Software Engineer, Backend

The Staff Engineer will work closely with AI/ML engineers, product managers, app...

Location

United States , NYC

Salary:

160000.00 - 190000.00 USD / Year

Conductor

Expiration Date

Until further notice

Requirements

Completed studies in Computer Science, Mathematics, engineering or a related field or equivalent professional experience
8+ years of experience in software development, with experience in product-driven companies
Strong expertise in system design, distributed computing, and scalable architecture patterns for handling large datasets and high-throughput applications
Proficiency in multiple programming languages with strong Python coding skills. Experience with Java is highly valued
Strong database experience including both SQL and NoSQL systems, with knowledge of data modeling and optimization techniques
Experience with AI/ML technologies including LLMs, vector databases (e.g., Milvus), embeddings, and ML frameworks
Knowledge of MLOps practices, model deployment, and AI system integration in production environments
Experience working across the full software development lifecycle including CI/CD, monitoring, testing, and production deployment
Proven track record of technical leadership, mentoring engineers, and driving engineering excellence within teams
Up-to-date with rapidly-evolving technologies and demonstrated ability to evaluate and adopt new tools and frameworks

Job Responsibility

Lead the technical architecture, design, and implementation of large-scale distributed systems and data platforms to support customer needs and business growth
Oversee the planning, execution, and successful delivery of complex engineering projects, ensuring adherence to engineering best practices and quality standards
Design and build scalable, high-performance backend systems and APIs that handle millions of requests and large datasets efficiently
Architect robust data processing pipelines and ETL workflows using modern cloud technologies and distributed computing frameworks
Drive technical decision-making across the engineering organization, evaluating trade-offs and establishing engineering standards and practices
Lead cross-functional collaboration with product, AI/ML engineering, data engineering, and infrastructure teams to deliver comprehensive solutions
Build and maintain CI/CD pipelines, monitoring systems, and deployment automation to ensure reliable software delivery
Implement AI/ML capabilities including LLM integration, vector databases, and intelligent content processing workflows
Mentor senior and junior engineers, fostering technical excellence and knowledge sharing within the engineering organization

What we offer

100% covered employee medical plan
a dental & vision plans
401(k) with employer contribution
an unlimited vacation policy
10 sick days
short-term disability
long-term disability
generous paid parental leave
employee assistance program
flexible savings accounts

Fulltime

Lead Backend Engineer

As a Lead Backend Engineer, you will play a crucial role in leading the developm...

Location

United States

Salary:

184000.00 - 229000.00 USD / Year

Corelight

Expiration Date

Until further notice

Requirements

Strong appreciation and support for our core values: low ego results, tireless service, and applied curiosity
7+ years of professional software development experience
Experience building REST APIs / GraphQL to support a rich data-heavy visual user interface
Experience using AWS Services (Lambda, AppSync, API Gateway) or equivalent
Experience with Python, Java and/or Go
Knowledge of Relational and NoSQL databases
Experience using Docker, Kubernetes, and containerized microservices
Experience adopting & using Agile development methodologies
Excellent communication skills. You thrive by collaborating with multiple teams and use your communication skills to influence product directions
Bachelor's degree in Computer Science or related fields, or equivalent experience

Job Responsibility

Lead the technical design discussions within the team and collaborate with other teams across the organization
Design, develop and operate scalable, elastic and secure microservices based on serverless architectures
Build REST APIs / GraphQL services to interface with large datasets and analytics using AWS technologies and services like AWS Lambda, API Gateway, DynamoDB, S3, and Cloudwatch
Work in an Agile development team to design and deliver service features end-to-end from design to production deployment and monitoring
Evangelize and drive adoption of software development best practices in code health, quality, test stability and maintainability
Work closely with offshore teams on various development projects

Fulltime

Python Backend Engineer

Makersite GmbH

Location:
Germany , Berlin

Category:
IT - Software Development

Contract Type:
Employment contract

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
January 11, 2026

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